AMETEK, Inc.
US ˙ NYSE ˙ US0311001004

SecurityAME / AMETEK, Inc.
InstitutionSei Investments Co
Latest Disclosed Ownership344,757 shares
Latest Disclosed Value $ 70,783,744
Sei Investments Co reports 48.37% increase in ownership of AME / AMETEK, Inc.

On February 13, 2026 - Sei Investments Co filed a 13F-HR form disclosing ownership of 344,757 shares of AMETEK, Inc. (US:AME) valued at $70,782,060 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 232,370 shares of AMETEK, Inc.. This represents a change in shares of 48.37% during the quarter. The current value of the position is $78,866,611 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-02-13 2025-12-31 13F AMETEK COM 031100100 344,757 112,387 48.37 70,784 62.03 0.0699
2025-11-13 2025-09-30 13F AMETEK COM 031100100 232,370 9,143 4.10 43,686 8.15 0.0470
2025-08-14 2025-06-30 13F AMETEK COM 031100100 223,227 22,035 10.95 40,392 16.64 0.0468
2025-05-14 2025-03-31 13F/A-1 AMETEK COM 031100100 201,192 51,524 34.43 34,632 28.39 0.0446
2025-05-13 2025-03-31 13F AMETEK COM 031100100 161,555 11,887 28,717 0.0312
2025-02-11 2024-12-31 13F AMETEK COM 031100100 149,668 1,373 0.93 26,975 5.93 0.0346
2024-11-12 2024-09-30 13F AMETEK COM 031100100 148,295 -276,824 -65.12 25,466 -64.07 0.0331
2024-08-13 2024-06-30 13F AMETEK COM 031100100 425,119 30,238 7.66 70,871 -1.87 0.1004
2024-05-07 2024-03-31 13F AMETEK COM 031100100 394,881 225,600 133.27 72,223 158.78 0.1058
2024-02-14 2023-12-31 13F AMETEK COM 031100100 169,281 -13,153 -7.21 27,910 3.54 0.0448
2023-11-14 2023-09-30 13F AMETEK COM 031100100 182,434 1,631 0.90 26,956 -7.90 0.0484
2023-08-11 2023-06-30 13F AMETEK COM 031100100 180,803 26,175 16.93 29,270 30.25 0.0511
2023-05-12 2023-03-31 13F AMETEK COM 031100100 154,628 14,403 10.27 22,473 14.69 0.0417
2023-02-10 2022-12-31 13F AMETEK COM 031100100 140,225 6,560 4.91 19,594 29.26 0.0435
2022-11-14 2022-09-30 13F AMETEK COM 031100100 133,665 1,739 1.32 15,158 4.06 0.0338
2022-08-15 2022-06-30 13F AMETEK COM 031100100 131,926 -2,049 -1.53 14,566 -18.94 0.0315
2022-05-13 2022-03-31 13F AMETEK COM 031100100 133,975 -11,815 -8.10 17,969 -16.45 0.0361
2022-02-14 2021-12-31 13F AMETEK COM 031100100 145,790 18,383 14.43 21,507 35.37 0.0403
2021-11-12 2021-09-30 13F AMETEK COM 031100100 127,407 -5,209 -3.93 15,887 -10.54 0.0333
2021-08-06 2021-06-30 13F AMETEK COM 031100100 132,616 -11,824 -8.19 17,758 -3.42 0.0394
2021-05-12 2021-03-31 13F AMETEK COM 031100100 144,440 2,217 1.56 18,387 6.89 0.0463
2021-02-08 2020-12-31 13F AMETEK COM 031100100 142,223 -2,506 -1.73 17,201 19.52 0.0445
2020-12-04 2020-09-30 13F/A-1 AMETEK COM 031100100 144,729 -115,417 -44.37 14,392 -38.15 0.0417
2020-11-06 2020-09-30 13F AMETEK COM 031100100 146,073 -114,073 14,526 34,975.3783
2020-08-17 2020-06-30 13F/A-1 AMETEK COM 031100100 260,146 118,427 83.56 23,268 127.34 0.0722
2020-08-11 2020-06-30 13F AMETEK COM 031100100 201,827 60,108 19,105 51,823.3295
2020-05-14 2020-03-31 13F AMETEK COM 031100100 141,719 27,177 23.73 10,235 -10.45 0.0376
2020-02-06 2019-12-31 13F AMETEK INC COM 031100100 114,542 -66,921 -36.88 11,429 -31.37 0.0341
2019-11-12 2019-09-30 13F AMETEK INC COM 031100100 181,463 19,666 12.15 16,652 13.36 0.0426
2019-08-14 2019-06-30 13F AMETEK INC COM 031100100 161,797 4,292 2.72 14,690 12.46 0.0480
2019-05-15 2019-03-31 13F AMETEK INC COM 031100100 157,505 -25,381 -13.88 13,062 -9.69 0.0439
2019-02-13 2018-12-31 13F AMETEK INC COM 031100100 182,886 -645 -0.35 14,463 -0.31 0.0515
2018-11-08 2018-09-30 13F AMETEK INC COM 031100100 183,531 -6,455 -3.40 14,508 5.82 0.0526
2018-08-03 2018-06-30 13F AMETEK INC COM 031100100 189,986 180,237 1,848.77 13,710 1,750.20 0.0466
2018-05-11 2018-03-31 13F AMETEK INC COM 031100100 9,749 -196,159 -95.27 741 -95.03 0.0028
2018-02-08 2017-12-31 13F AMETEK INC COM 031100100 205,908 53,015 34.67 14,918 47.75 0.0518
2017-11-06 2017-09-30 13F AMETEK INC COM 031100100 152,893 -13,242 -7.97 10,097 0.34 0.0359
2017-07-31 2017-06-30 13F AMETEK INC COM 031100100 166,135 -12,533 -7.01 10,063 4.15 0.0401
2017-05-05 2017-03-31 13F AMETEK INC COM 031100100 178,668 65,025 57.22 9,662 75.29 0.0423
2017-02-02 2016-12-31 13F AMETEK INC COM 031100100 113,643 87,098 328.11 5,512 334.70 0.0267
2016-11-04 2016-09-30 13F AMETEK INC COM 031100100 26,545 6,612 33.17 1,268 37.53 0.0064
2016-08-11 2016-06-30 13F AMETEK INC COM 031100100 19,933 -79 -0.39 922 -7.80 0.0055
2016-05-10 2016-03-31 13F/A-1 AMETEK INC COM 031100100 20,012 9,825 96.45 1,000 83.15 0.0062
2016-02-03 2015-12-31 13F AMETEK INC COM 031100100 10,187 9,789 2,459.55 546 2,500.00 0.0033
2015-11-02 2015-09-30 13F/A-1 AMETEK INC COM 031100100 398 9 2.31 21 0.00 0.0002
2015-10-30 2015-09-30 13F AMETEK INC COM 031100100 398 22
2015-08-07 2015-06-30 13F/A-1 AMETEK INC COM 031100100 389 -34 -8.04 21 10.53 0.0002
2015-08-04 2015-06-30 13F AMETEK INC COM 031100100 389 -34 21 0.0002
2015-05-14 2015-03-31 13F/A-1 AMETEK INC COM 031100100 423 -125 -22.81 19 -20.83 0.0002
2015-05-01 2015-03-31 13F AMETEK INC COM 031100100 423 19
2015-02-10 2014-12-31 13F AMETEK INC COM 031100100 548 548 24 0.0002
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.